

400 



DR. F. BITCH ANAK WHITE'S 



Wimmer 



hat the Linnean Salix phylicifolia is doubtful, uses the name 

 Weigeliana, Willd. The specimen in the Linnean Herbarium 



ifolia 



phylicifolia of modern j 

 whole, rather doubtful. 



We must now pass on to the varieties of 3 



Willow 



On its modifications upwards of one hundred supposed species 

 have been founded, eight of which are still retained, though as 

 varieties only, in British lists. For the reasons already given, 

 it is impossible to maintain these, though it is just possible that 

 one or two of the mountain forms may yet be shown to have 



stancy 



varieties) by their greater 



Wimmer 



> 



Eeichenbach 



ifolia 



does the British plant 



differs less from S. phylu 



Many of these published e: 



or nearly glabrous, shining, chestnut-coloured twigs; and are 



distinguished from phylicifolia only by the thinner leaves, if even 



by that. It is not wonderful, therefore, that Andersson and 



others have spoken of the extreme difficulty with which the two 



" species " can be separated. 



Andersson, following Fries, gives two chief modifications of 



nigricans : 



($. borealis, Fr.) and /3 



pestris, Fr.). S. borealis is a big bush or small tree, with stouter 

 branches, more downy twigs, larger leaves, and larger catkins, 

 with a leafy peduncle. S. protea is a smaller bush, with thinner 

 leaves and subsessile catkins. I have not seen authentic speci- 

 mens ; but, judging from the descriptions, both forms, as well 

 as intermediates, occur iu Britaiu. In connection with tins 

 matter, that which has been said above with regard to the nature 

 of the British nigricans as compared with the published Conti- 

 nental examples may be kept in iniud. 



Wimmer mentions two varieties — /3. borealis, Fr., and y. wa- 

 crophylla, Hartig (with large glabrous leaves) — and notices a 

 number of special forms, which, however, can scarcely be iden- 



- 



named 

 ifolia-n 



•This name (afterwards 



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